{"title":"铁和1C-1-4Cr钢与碳的激光表面合金化","authors":"A. Walker, D. West, W. Steen","doi":"10.1179/030716984803274882","DOIUrl":null,"url":null,"abstract":"AbstractAn investigation is reported of the introduction of carbon into a pure iron and into a 1C-1·4Cr steel (S 135) by means of laser surface alloying. The procedure involved precoating the specimen surfaces with Dag graphite; successive laser surface-melting treatments (up to 12) were given, re-applying the graphite coatings between each treatment. Alloying was carried out both with shallow melt zones and with ‘keyhole’ zones. Substantial degrees of carbon alloying were achieved, ranging from hypo- to hypereutectic levels; the maximum obtained was ∼6%C. In the hypereutectic zones substantial cracking and porosity were encountered. The white iron structures obtained were observed by optical, scanning electron, and transmission electron microscopy.","PeriodicalId":18409,"journal":{"name":"Metals technology","volume":"17 1","pages":"399-404"},"PeriodicalIF":0.0000,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"21","resultStr":"{\"title\":\"Laser surface alloying of iron and 1C–1–4Cr steel with carbon\",\"authors\":\"A. Walker, D. West, W. Steen\",\"doi\":\"10.1179/030716984803274882\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"AbstractAn investigation is reported of the introduction of carbon into a pure iron and into a 1C-1·4Cr steel (S 135) by means of laser surface alloying. The procedure involved precoating the specimen surfaces with Dag graphite; successive laser surface-melting treatments (up to 12) were given, re-applying the graphite coatings between each treatment. Alloying was carried out both with shallow melt zones and with ‘keyhole’ zones. Substantial degrees of carbon alloying were achieved, ranging from hypo- to hypereutectic levels; the maximum obtained was ∼6%C. In the hypereutectic zones substantial cracking and porosity were encountered. The white iron structures obtained were observed by optical, scanning electron, and transmission electron microscopy.\",\"PeriodicalId\":18409,\"journal\":{\"name\":\"Metals technology\",\"volume\":\"17 1\",\"pages\":\"399-404\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1984-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"21\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metals technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1179/030716984803274882\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metals technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1179/030716984803274882","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Laser surface alloying of iron and 1C–1–4Cr steel with carbon
AbstractAn investigation is reported of the introduction of carbon into a pure iron and into a 1C-1·4Cr steel (S 135) by means of laser surface alloying. The procedure involved precoating the specimen surfaces with Dag graphite; successive laser surface-melting treatments (up to 12) were given, re-applying the graphite coatings between each treatment. Alloying was carried out both with shallow melt zones and with ‘keyhole’ zones. Substantial degrees of carbon alloying were achieved, ranging from hypo- to hypereutectic levels; the maximum obtained was ∼6%C. In the hypereutectic zones substantial cracking and porosity were encountered. The white iron structures obtained were observed by optical, scanning electron, and transmission electron microscopy.
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